In March of 2153 the probe was launched in a test attack against Earth, bypassing Earth's defences and arriving in immediate orbit though the use of a subspace vortex. As soon as it entered orbit the probe fired, cutting a 4000 kilometer swath from Florida to Venezuela, and killing seven million people in the process.

The test did not go as the Xindi had hoped, causing significant damage to the target moon, but not completely destroying it. This was thanks to sabotaged materials in the weapons construction by the Xindi-Arboreal, Gralik Durr, who had been convinced by Jonathan Archer of the deadly application - in the construction of the weapon - the kemocite he supplied the other Xindi. The kemocite had also had its radiolytic signature altered to allow it to be tracked by the Enterprise to the test site. (ENTepisodes: "Proving Ground", "The Shipment")

Working with the Andorian warship Kumari the Enterprise devised a plan to steal the weapon. Following the test firing the Kumari entered the system and tractored the prototype into it's hull. The Andorians then planned to betray the Enterprise and return with the weapon to Andor, using it as a deterrent against the Vulcans. Not willing to allow this to happen Archer had T'Pol enter the activation codes to issue an overload command. The Andorians jettisoned the weapon just in time for it to not destroy their vessel as it exploded. (ENTepisode: "Proving Ground")

When it became apparent some members of the Xindi council were starting to question the attack on Earth, thanks to the arguments put forth by Jonathan Archer, a force of Xindi-Reptilians and Xindi-Insectiods decided to hijack the weapon, determined to complete the attack. Despite the best efforts of the Enterprise and the forces of the rest of the Xindi, the Reptilians and Insectiods successfully escaped with the weapon into a subspace vortex. (ENTepisodes: "The Council", "Countdown")

The weapon approaches Earth

The weapon headed straight for Earth, but a team from the Enterprise assisted by the Xindi followed closely behind and when the weapon arrived they transported inside to destroy it from within by causing an overload. (ENTepisode: "Zero Hour")

Following the successful completion of the mission to stop the weapon the Enterprise and her crew received a heroes welcome at their return to Earth. However the incident also provoked heightened levels of xenophobia on Earth, resulting in gathering support for the Terra Prime movement in 2155. (ENTepisodes: "Home", "Demons", "Terra Prime")